In this category, it is listed whether the mount is attached to the optical device with rings or via rail. In the red dot sight adapters section, it is written which red dot sight the adapter is made for.

If the mount is attached to the optical device with rings, the ring diameter is listed:

25.4 mm/1 inch (in most cases interchangeable with 26 mm)

30 mm

34 mm

35 mm

36 mm

40 mm

If the mount is attached to the optical device with rail, the rail type is listed:

LM rail

Zeiss ZM/VM rail

Swarovski SR rail

S&B Convex rail

Picatinny rail

Pulsar Apex, Trail, Digisight

Dedal NV

Fortuna General

In the red dot sight adapters section, it is written which red dot sight the adapter is for:

Docter sight mounts

Aimpoint Micro mounts

Zeiss compact

Trijicon MRO

Shield sights

C-more

...

S&B Convex rail

Inclination

Often, the elevation adjustment that the riflescope offers is not adequate to compensate for the bullet drop when shooting at long range. When the riflescope runs of out of elevation, a mount with an inclination is needed. 20 MOA is the most common inclination. With it, the user gains 58.2 cm / 100 m of additional elevation range when shooting at the range of 100 m. This is approx. 5.8 Mrad of elevation.